EP1045470A2 - Mehrkreisiges Bandfilter aus Topfkreisen - Google Patents
Mehrkreisiges Bandfilter aus Topfkreisen Download PDFInfo
- Publication number
- EP1045470A2 EP1045470A2 EP00103911A EP00103911A EP1045470A2 EP 1045470 A2 EP1045470 A2 EP 1045470A2 EP 00103911 A EP00103911 A EP 00103911A EP 00103911 A EP00103911 A EP 00103911A EP 1045470 A2 EP1045470 A2 EP 1045470A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- pot
- circles
- resonator
- negative feedback
- loop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2053—Comb or interdigital filters; Cascaded coaxial cavities the coaxial cavity resonators being disposed parall to each other
Definitions
- the invention relates to a multi-circuit band filter coupled circles, of which at least two HF circles not consecutive in terms of HF over one Coupling pipe section dipping into both pot circles are.
- the degree of negative feedback is determined by the size of the determines the respective loop area, because the larger this the larger the magnetic field enclosed by the loop and thus the amplitude of the coupled wave.
- the mechanical length of the coaxial cable chosen so that its electrical length equal to ⁇ / 2 or an odd number Multiples of it is.
- Such negative feedback bandpass filters are however not usable for higher HF powers, because because the coaxial cable goes through the loops at its beginning and its end is short-circuited, forms along the Cable a standing wave, so that on the cable A pronounced maximum of electricity arises at least in one place.
- the invention has for its object a band filter type mentioned at the beginning with a high-performance negative feedback to provide.
- Pot circles are arranged so that at least the counter-coupling Adjoin pot circles and that the line piece as a loop immersed in the circle of a pot, the through one in the partition of the adjoining pot circles formed slot through with a stamp in the other pot circle is connected, is formed.
- the immersion depth of the line piece in the is preferred two pot circles adjustable.
- this enables the setting of the degree of negative feedback, on the other hand the simple change in the degree of negative feedback after a change the frequency tuning of the filter.
- the This proposal has the further advantage that the Amounts of inductive and capacitive coupling in coordination the filter to another frequency in the same way to change. For example, if the filter is known per se Way tuned to a lower center frequency and should the negative feedback of the relevant pot circles is constant remain, so the area in the one pot circle immersing loop can be enlarged. this happens by increasing the immersion depth of the pipe section. With the one causing the capacitive coupling is also shifted Stamp in the other circle. Because at the same time the immersion depth of the inner conductor of this pot circle enlarged to tune to the desired, lower frequency capacitive coupling remains constant. The proposed negative feedback is therefore over a wide range Frequency range effective.
- the band filter comprises six pot circles in the form of resonators A1 to A6 in a U-shaped arrangement.
- the HF is over the Connection 1 coupled into the first resonator A1 and via the connection 2 is coupled out of the resonator A6.
- HF-like successive resonators are known per se Way over bridges 3 to be seen only in Fig. 2 with each other coupled, their immersion depth in the respective resonators is adjustable for setting the degree of coupling and the can be fixed using locking screws 4.
- the immersion depth the inner resonator is for frequency tuning adjustable.
- the resonators A2 and A5 are according to the present proposal HF-fed back. To do this, dive into the resonator A2 a line piece 21, one hand in the Short circuit or high current zone near the wall in the resonator A2 forms a line loop and on the other hand by one Slot 41 in the common partition 40 of these two Is passed through resonators and in the resonator A5 in a stamp 22 ends.
- This arrangement turns the Resonator A2 RF energy inductively coupled and capacitive and therefore with a phase rotation of 180 ° to achieve the desired negative feedback is coupled into the resonator A5.
- the immersion depth of the line piece 21 is by means of the rod 23 changeable. At the set immersion depth is the pipe section through the locking screw 24 lockable.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
- Figur 1
- das Bandfilter im Schnitt längs der Linie A-A in Fig. 2 und
- Figur 2
- eine Aufsicht auf das Bandfilter.
Claims (2)
- Mehrkreisiges Bandfilter aus miteinander gekoppelten Topfkreisen (A1 bis A6), von denen mindestens zwei HF-mäßig nicht aufeinanderfolgende Topfkreise (A2, A5) über ein in beide Topfkreise eintauchendes Leitungsstück gegengekoppelt sind, dadurch gekennzeichnet, daß die Topfkreise (A1 bis A6) so angeordnet sind, daß zumindest die gegenzukoppelnden Topfkreise (A2, A5) aneinandergrenzen, und daß das Leitungsstück als in den einen Topfkreis (A2) eintauchende Schleife (21), die durch einen in der Trennwand (40) der aneinandergrenzenden Topfkreise ausgebildeten Schlitz (41) hindurch mit einem Stempel (22) in dem anderen Topfkreis (A5) verbunden ist, ausgebildet ist.
- Bandfilter nach Anspruch 1, dadurch gekennzeichnet, daß die Eintauchtiefe des die Schleife (21) und den Stempel (22) umfassenden Leitungsstücks veränderbar ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19916605A DE19916605C1 (de) | 1999-04-13 | 1999-04-13 | Mehrkreisiges Bandfilter aus Topfkreisen |
DE19916605 | 1999-04-13 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1045470A2 true EP1045470A2 (de) | 2000-10-18 |
EP1045470A3 EP1045470A3 (de) | 2001-11-07 |
EP1045470B1 EP1045470B1 (de) | 2004-03-03 |
Family
ID=7904372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000103911 Expired - Lifetime EP1045470B1 (de) | 1999-04-13 | 2000-02-24 | Mehrkreisiges Bandfilter aus Topfkreisen |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1045470B1 (de) |
DE (1) | DE19916605C1 (de) |
ES (1) | ES2215503T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2077600A1 (de) * | 2007-12-27 | 2009-07-08 | THOMSON Licensing | Hohlraumfilter-Kupplungssystem |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102011016487A1 (de) | 2011-04-08 | 2012-10-11 | Spinner Gmbh | HF-Filteranordnung sowie Verfahren zur Variation einer elektromagnetischen Koppelstärke zwischen zwei Topfkreis-Resonatoren |
DE102013020428A1 (de) | 2013-12-05 | 2015-06-11 | Kathrein-Werke Kg | Hochfrequenzfilter in koaxialer Bauweise |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2161792A1 (de) * | 1971-12-13 | 1973-06-14 | Siemens Ag | Filter fuer sehr kurze elektromagnetische wellen |
EP0101369A1 (de) * | 1982-08-10 | 1984-02-22 | Alcatel Thomson Faisceaux Hertziens | Banddurchlassfilter mit dielektrischen Resonatoren, mit negativer Kupplung zwischen Resonatoren |
US4890078A (en) * | 1988-04-12 | 1989-12-26 | Phase Devices Limited | Diplexer |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2325401C3 (de) * | 1973-05-18 | 1985-05-15 | Georg Dr.-Ing. 8152 Feldkirchen-Westerham Spinner | Koppelanordnung zwischen Hochfrequenzkreisen |
DE3329057A1 (de) * | 1983-08-11 | 1985-02-28 | Siemens AG, 1000 Berlin und 8000 München | Koaxialleitungs-, kammleitungs- oder interdigitalfilter mit wenigstens vier resonatoren |
-
1999
- 1999-04-13 DE DE19916605A patent/DE19916605C1/de not_active Expired - Fee Related
-
2000
- 2000-02-24 ES ES00103911T patent/ES2215503T3/es not_active Expired - Lifetime
- 2000-02-24 EP EP20000103911 patent/EP1045470B1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2161792A1 (de) * | 1971-12-13 | 1973-06-14 | Siemens Ag | Filter fuer sehr kurze elektromagnetische wellen |
EP0101369A1 (de) * | 1982-08-10 | 1984-02-22 | Alcatel Thomson Faisceaux Hertziens | Banddurchlassfilter mit dielektrischen Resonatoren, mit negativer Kupplung zwischen Resonatoren |
US4890078A (en) * | 1988-04-12 | 1989-12-26 | Phase Devices Limited | Diplexer |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2077600A1 (de) * | 2007-12-27 | 2009-07-08 | THOMSON Licensing | Hohlraumfilter-Kupplungssystem |
Also Published As
Publication number | Publication date |
---|---|
EP1045470A3 (de) | 2001-11-07 |
DE19916605C1 (de) | 2001-01-18 |
EP1045470B1 (de) | 2004-03-03 |
ES2215503T3 (es) | 2004-10-16 |
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